fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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284 lines
10 KiB
284 lines
10 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// This file implements the "bridge" between Java and C++
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// for ROCKSDB_NAMESPACE::TransactionDB.
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#include <jni.h>
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#include "include/org_rocksdb_OptimisticTransactionDB.h"
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#include "rocksdb/options.h"
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#include "rocksdb/utilities/optimistic_transaction_db.h"
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#include "rocksdb/utilities/transaction.h"
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#include "rocksjni/portal.h"
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: open
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* Signature: (JLjava/lang/String;)J
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*/
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jlong Java_org_rocksdb_OptimisticTransactionDB_open__JLjava_lang_String_2(
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JNIEnv* env, jclass, jlong joptions_handle, jstring jdb_path) {
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const char* db_path = env->GetStringUTFChars(jdb_path, nullptr);
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if (db_path == nullptr) {
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// exception thrown: OutOfMemoryError
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return 0;
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}
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auto* options =
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reinterpret_cast<ROCKSDB_NAMESPACE::Options*>(joptions_handle);
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ROCKSDB_NAMESPACE::OptimisticTransactionDB* otdb = nullptr;
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ROCKSDB_NAMESPACE::Status s =
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ROCKSDB_NAMESPACE::OptimisticTransactionDB::Open(*options, db_path,
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&otdb);
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env->ReleaseStringUTFChars(jdb_path, db_path);
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if (s.ok()) {
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return reinterpret_cast<jlong>(otdb);
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} else {
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ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
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return 0;
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}
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: open
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* Signature: (JLjava/lang/String;[[B[J)[J
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*/
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jlongArray
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Java_org_rocksdb_OptimisticTransactionDB_open__JLjava_lang_String_2_3_3B_3J(
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JNIEnv* env, jclass, jlong jdb_options_handle, jstring jdb_path,
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jobjectArray jcolumn_names, jlongArray jcolumn_options_handles) {
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const char* db_path = env->GetStringUTFChars(jdb_path, nullptr);
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if (db_path == nullptr) {
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// exception thrown: OutOfMemoryError
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return nullptr;
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}
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std::vector<ROCKSDB_NAMESPACE::ColumnFamilyDescriptor> column_families;
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const jsize len_cols = env->GetArrayLength(jcolumn_names);
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if (len_cols > 0) {
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if (env->EnsureLocalCapacity(len_cols) != 0) {
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// out of memory
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env->ReleaseStringUTFChars(jdb_path, db_path);
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return nullptr;
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}
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jlong* jco = env->GetLongArrayElements(jcolumn_options_handles, nullptr);
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if (jco == nullptr) {
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// exception thrown: OutOfMemoryError
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env->ReleaseStringUTFChars(jdb_path, db_path);
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return nullptr;
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}
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for (int i = 0; i < len_cols; i++) {
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const jobject jcn = env->GetObjectArrayElement(jcolumn_names, i);
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if (env->ExceptionCheck()) {
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// exception thrown: ArrayIndexOutOfBoundsException
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env->ReleaseLongArrayElements(jcolumn_options_handles, jco, JNI_ABORT);
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env->ReleaseStringUTFChars(jdb_path, db_path);
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return nullptr;
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}
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const jbyteArray jcn_ba = reinterpret_cast<jbyteArray>(jcn);
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const jsize jcf_name_len = env->GetArrayLength(jcn_ba);
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if (env->EnsureLocalCapacity(jcf_name_len) != 0) {
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// out of memory
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env->DeleteLocalRef(jcn);
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env->ReleaseLongArrayElements(jcolumn_options_handles, jco, JNI_ABORT);
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env->ReleaseStringUTFChars(jdb_path, db_path);
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return nullptr;
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}
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jbyte* jcf_name = env->GetByteArrayElements(jcn_ba, nullptr);
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if (jcf_name == nullptr) {
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// exception thrown: OutOfMemoryError
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env->DeleteLocalRef(jcn);
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env->ReleaseLongArrayElements(jcolumn_options_handles, jco, JNI_ABORT);
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env->ReleaseStringUTFChars(jdb_path, db_path);
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return nullptr;
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}
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const std::string cf_name(reinterpret_cast<char*>(jcf_name),
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jcf_name_len);
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const ROCKSDB_NAMESPACE::ColumnFamilyOptions* cf_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::ColumnFamilyOptions*>(jco[i]);
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column_families.push_back(
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ROCKSDB_NAMESPACE::ColumnFamilyDescriptor(cf_name, *cf_options));
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env->ReleaseByteArrayElements(jcn_ba, jcf_name, JNI_ABORT);
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env->DeleteLocalRef(jcn);
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}
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env->ReleaseLongArrayElements(jcolumn_options_handles, jco, JNI_ABORT);
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}
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auto* db_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::DBOptions*>(jdb_options_handle);
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std::vector<ROCKSDB_NAMESPACE::ColumnFamilyHandle*> handles;
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ROCKSDB_NAMESPACE::OptimisticTransactionDB* otdb = nullptr;
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const ROCKSDB_NAMESPACE::Status s =
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ROCKSDB_NAMESPACE::OptimisticTransactionDB::Open(
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*db_options, db_path, column_families, &handles, &otdb);
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env->ReleaseStringUTFChars(jdb_path, db_path);
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// check if open operation was successful
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if (s.ok()) {
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const jsize resultsLen = 1 + len_cols; // db handle + column family handles
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std::unique_ptr<jlong[]> results =
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std::unique_ptr<jlong[]>(new jlong[resultsLen]);
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results[0] = reinterpret_cast<jlong>(otdb);
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for (int i = 1; i <= len_cols; i++) {
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results[i] = reinterpret_cast<jlong>(handles[i - 1]);
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}
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jlongArray jresults = env->NewLongArray(resultsLen);
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if (jresults == nullptr) {
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// exception thrown: OutOfMemoryError
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return nullptr;
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}
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env->SetLongArrayRegion(jresults, 0, resultsLen, results.get());
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if (env->ExceptionCheck()) {
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// exception thrown: ArrayIndexOutOfBoundsException
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return nullptr;
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}
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return jresults;
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}
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ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
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return nullptr;
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: disposeInternal
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* Signature: (J)V
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*/
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void Java_org_rocksdb_OptimisticTransactionDB_disposeInternal(
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JNIEnv *, jobject, jlong jhandle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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assert(optimistic_txn_db != nullptr);
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delete optimistic_txn_db;
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: closeDatabase
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* Signature: (J)V
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*/
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void Java_org_rocksdb_OptimisticTransactionDB_closeDatabase(
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JNIEnv* env, jclass, jlong jhandle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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assert(optimistic_txn_db != nullptr);
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ROCKSDB_NAMESPACE::Status s = optimistic_txn_db->Close();
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ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: beginTransaction
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* Signature: (JJ)J
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*/
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jlong Java_org_rocksdb_OptimisticTransactionDB_beginTransaction__JJ(
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JNIEnv*, jobject, jlong jhandle, jlong jwrite_options_handle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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auto* write_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::WriteOptions*>(jwrite_options_handle);
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ROCKSDB_NAMESPACE::Transaction* txn =
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optimistic_txn_db->BeginTransaction(*write_options);
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return reinterpret_cast<jlong>(txn);
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: beginTransaction
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* Signature: (JJJ)J
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*/
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jlong Java_org_rocksdb_OptimisticTransactionDB_beginTransaction__JJJ(
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JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle,
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jlong jwrite_options_handle, jlong joptimistic_txn_options_handle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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auto* write_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::WriteOptions*>(jwrite_options_handle);
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auto* optimistic_txn_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionOptions*>(
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joptimistic_txn_options_handle);
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ROCKSDB_NAMESPACE::Transaction* txn = optimistic_txn_db->BeginTransaction(
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*write_options, *optimistic_txn_options);
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return reinterpret_cast<jlong>(txn);
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: beginTransaction_withOld
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* Signature: (JJJ)J
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*/
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jlong Java_org_rocksdb_OptimisticTransactionDB_beginTransaction_1withOld__JJJ(
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JNIEnv*, jobject, jlong jhandle, jlong jwrite_options_handle,
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jlong jold_txn_handle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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auto* write_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::WriteOptions*>(jwrite_options_handle);
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auto* old_txn =
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reinterpret_cast<ROCKSDB_NAMESPACE::Transaction*>(jold_txn_handle);
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ROCKSDB_NAMESPACE::OptimisticTransactionOptions optimistic_txn_options;
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ROCKSDB_NAMESPACE::Transaction* txn = optimistic_txn_db->BeginTransaction(
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*write_options, optimistic_txn_options, old_txn);
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// RocksJava relies on the assumption that
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// we do not allocate a new Transaction object
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// when providing an old_optimistic_txn
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assert(txn == old_txn);
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return reinterpret_cast<jlong>(txn);
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: beginTransaction_withOld
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* Signature: (JJJJ)J
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*/
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jlong Java_org_rocksdb_OptimisticTransactionDB_beginTransaction_1withOld__JJJJ(
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JNIEnv*, jobject, jlong jhandle, jlong jwrite_options_handle,
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jlong joptimistic_txn_options_handle, jlong jold_txn_handle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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auto* write_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::WriteOptions*>(jwrite_options_handle);
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auto* optimistic_txn_options =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionOptions*>(
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joptimistic_txn_options_handle);
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auto* old_txn =
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reinterpret_cast<ROCKSDB_NAMESPACE::Transaction*>(jold_txn_handle);
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ROCKSDB_NAMESPACE::Transaction* txn = optimistic_txn_db->BeginTransaction(
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*write_options, *optimistic_txn_options, old_txn);
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// RocksJava relies on the assumption that
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// we do not allocate a new Transaction object
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// when providing an old_optimisic_txn
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assert(txn == old_txn);
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return reinterpret_cast<jlong>(txn);
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}
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/*
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* Class: org_rocksdb_OptimisticTransactionDB
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* Method: getBaseDB
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* Signature: (J)J
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*/
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jlong Java_org_rocksdb_OptimisticTransactionDB_getBaseDB(
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JNIEnv*, jobject, jlong jhandle) {
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auto* optimistic_txn_db =
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reinterpret_cast<ROCKSDB_NAMESPACE::OptimisticTransactionDB*>(jhandle);
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return reinterpret_cast<jlong>(optimistic_txn_db->GetBaseDB());
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}
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